U.S. Air Force Tech. Sgt. Matthew Lawrence, 633rd Civil Engineer Squadron NCO in charge of explosive ordnance device training, scans for a simulated improvised explosive device during a Prime Base Engineer Emergency Force convoy training at Joint Base Langley-Eustis, Va., June 15, 2017. As part of a joint base, the 633rd CES team saves time and money using the facilities at Fort Eustis, Va., to provide a deployed-like environment for training. (U.S. Air Force photo/Airman 1st Class Kaylee Dubois)